Railroad Avenue over Big Thompson River
GoodLarimer County, Colorado · 450 S Railroad Avenue · Structure no. LOV450SRAILRDAV
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 108 ft
- 1 main span
- Daily traffic
- 2,613
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Railroad Avenue over Big Thompson River is a prestressed concrete box beam or girders - multiple carrying Railroad Avenue over Big Thompson River in Larimer County, Colorado. It was built in 1990, so it is 35 years old, younger than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,613 vehicles a day, roughly 11% of them trucks, projected to reach 3,266 by 2043. The structure is 108 ft (32.9 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Railroad Avenue over Big Thompson River built?
It was built in 1990, making it 35 years old in 2025.
What condition is Railroad Avenue over Big Thompson River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does Railroad Avenue over Big Thompson River carry?
About 2,613 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Railroad Avenue over Big Thompson River?
The structure is 108 ft (32.9 m) long with a longest span of 103 ft (31.3 m) and a deck 54 ft wide.
Who owns Railroad Avenue over Big Thompson River?
It is owned by the City or Municipal Highway Agency.